Dimethyl 2-iodobenzoylphosphonate, an unusual example of a crystalline α-ketophosphonate

Article abstract of DOI:10.1107/S0108270197006252

The crystal structure analysis of the title compound, C₉H₁₀IO₄P, is a rare example of a full structural determination of an α-ketophosphonate ester, a type of compound which normally forms an oil. The P-C(carbonyl) bond is long, there is evidence that steric repulsion between the I and O(carbonyl) atoms is unexpectedly weak and there is a short intermolecular I···O contact linking the molecules in chains. The structure is compared with 2-iodobenzoyl compounds and with a nickel complex of an α-ketophosphonate.